Sylvania



(No Model'.)

J. T. GRAW. MECHANISM FOR'MAKING PAPER BOXES.

No. 557,557. Patented Apr. 7, 1896.

WITNESSES INVENTOH" AN DREW EGRMMM, PHQIO-U'I'NQWASNINGTON, D C.

A UNITED STATES PATENT OFFICE.

JOSEPH T. CRAWV, OF JERSEY CITY, NEIV JERSEY, ASSIGNOR TO HIMSELF,ROBERT P. BROIVN AND EDIVARD L. BAILEY, OF PHILADELPHIA, PENN SYLVANIA.

MECHANISM FOR MAKING PAPER BOXES.

SPECIFICATION forming part of Letters Patent No. 557,557, dated April'7, 1896. Application filed October 5, 1895. Serial No. 564,719. (Nomodel.)

To all whom it may concern.-

Be it known that I, JOSEPH T. CRAW, a citizen of the United States,residing in Jersey City, Hudson county, State of New Jersey, haveinvented a certain new and useful Improvement in Mechanism for MakingPaper Boxes, of which the following specification is a true and exactdescription, reference being had to the accompanying drawings, whichform a part thereof.

My invention relates to mechanism for setting up knockdown boxes, andhas for its object to simplify the setting up of such boxes and also toerect a box in a superior manner.

The nature of myimprovements will be best understood as described inconnection with the drawings, in which they are illustrated, and inwhich- Figure 1 is a front View of my improved mechanism or tool; Fig.2, a side elevation of the tool, taken on the section-line new of Fig.3, Fig. 3 being a plan view shown partly in section on the line 3 3 ofFig. 2. Figs. 4, 5, and 6 are sectional views taken on the same plan asFig. 2 and illustrating the operation of the device upon a paper box.Fig. '7 is a detail View of a box folded by the tool;

A indicates a box, as I may call it, having a bottom A, sides A risingabove the bottom, and an end A Near the end A I provide standards A A,which may be, as shown, a part of the side walls A and which serve tosupport the pivot 0, upon which. the blade D turns.

B B indicate fingers secured on or in the end wall A of the box, andhaving, preferably, rounded ends, as indicated, which project beyond thewall A to the inside of the box. The height of the fingers B above thebottom A of the box should'correspond closely to the height of the paperbox which the tool assists in making.

0, as before mentioned, is a pivot upon which the blade D turns. Thepivot is preferably situated, as shown, a slight distance in front ofthe end wall A and in such a position that the rear of the blade D-thatis to say, the portion of said blade which is closest to the wall Al-shall, when the blade is turned up, as shown in Figs. 1 and 2, restflat against the inside of the end wall A or preferably so that thesliding blade E, which shares the pivoting motion of the blade D, shallso rest against the end wall. In the construction shown I providecavities D in the back of the blade D, into which the fingers B projectwhen the blade is erected, as shown in Figs. 1 and 2, and of course itwill be understood that openin gs are formed through the blade E, asindicated in the drawings, so that the fingers B may pass through thisblade. Theblade E is secured to the back of the blade D, so as to slidethereon, and it is preferably formed with a sharpened point, asindicated at E, said point preferably, also,bein g somewhat broader thanthe blade D, so as to project slightly on each side of it, as is clearlyshown in Fig. 1. The blade E is kept normally in the position indicatedin Figs. 1, 2, 4, and 5 by the action of the spring F or of anyconveniently-placed spring, the spring F in the construction shownpressing against a projection E extending out from the top of the bladeE, and said blade being provided with a handle, as indicated at E IIindicates the bottom of a knockdown paper-box fold formed with doublebottom and double walls, the inner folds of the walls being indicated atH and the inner bottom fold at H H indicates a projecting end foldforming apart of the said wall of the box and bent at right angles toit, while H and H indicate, respectively, the outer and inner folds ofthe ends of the box, between which lie the folds or flaps H when the boxis erected for use.

In using my improved tool the blade D is brought or allowed to fall intothe position indicated in Fig. 4. The box has its side folds thenbrought to approximate position and is inserted between the Walls A A ofthe box A and thrust back against the end wall A as indicated in Fig. 4,the fingers B pressing the fold H down to about ninety degrees with thefold H, as indicated in Fig. 4, thebend being made on the line indicatedat h. The blade D is then turned up to the position indicated in Figs. 2and 5, the end of the blade or of its attached sliding blade E pressingthe fold H inward and downward, as indicated in Fig. 5. The slidingblade E is then thrust downward, as indicated in Fig. 6, the effectbeing to force the end and corners of the fold IF to correct position,as indicated in Fig. 6, and I will state that I prefer to so form theinner side walls of the box and the inner bottom of the box as to leavea slight clearance, as indicated at h and 71 into which the blade E willforce the bottom and side edges of the inner end fold H, as is clearlyindicated in Fig. 6 of the drawings.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In atool for setting up knockdown boxes, the combination of the box Aand the blade D pivoted as described and so that its rear face willclamp a box end between itself and the end of the box when the end ofsaid blade is turned down in the box.

2. In a tool for setting up knockdown boxes, the combination of the boxA, the plate D pivoted as described and so that its rear face will clampa box end between itself and the end of the box when the end of saidblade is turned down in the box, and a blade E sliding 011 the back ofblade D.

3. In a tool for setting up knockdown boxes, the combination of the boxA, the fingers B B extending inward over the end wall of the box, andthe blade D pivoted as described and so that its rear face will clamp abox end between itself and the end of the box when the end of said bladeis turned down in the box.

JOSEPH T. CRAVV.

"Witnesses O. L. MALCOLM, J. H. NEILL.

